Improvement in filters



2 Sheets-Sheet 1. V. DORDET.

FILTER. No.188,606 Patented March 20,1877.

2 Sheets-Sheet 2.

V.- DORDET.

FILTER.

No.188,605. Patented March 20,1877.

Spa 713e ar WMZ UNITED STATES PATENT OFFICE.

VICTII. DORDET, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN FILTERS.

Specification formin'g'part of Letters Patent No. 188,606, dated March 20, 1877; application filed March 3, 1877.

To all whom it may concern Be it known that l, VICTOR DoRDE'r, of Philadelphia, Pennsylvania, have invented certain new and useful Improvements in h`ilters and Filtering Media, of which the following is a specification The filtering medium' which I contemplate making use ot' is wool or-sponge. rlhis material, in its physical structure, isvadmirably adapted for ltering purposes. its chemical comlmsition, however, is a barrier to its use for the purpose. .Although it serves admirably to arrest impurities contained in the water, yet it is apt itself to undergo a certain deci-nnposilion, which will taint and unpleasantlyv affect the vwater. r In order therefore to render wool or sponge, or both, practically available, it is necessary to treat it preliniinarily in such manner as to render ,it dead 7-removing or changing,r those elements of' it which otherwise would decompose.

To this end I treat the material with tan-- used in a suitable receptacle as a liltering,r luedium for water.

One apparatus adapted for the purpose is shown in Figures lIY and 2 ol' the accom pan ying drawing.

It consists of' a vessel. l), closed at the top by a removable cover, D', between which and Athe top of the vessel is held the flange ol' a cap, F, which contains. preferably, sponge, to arrest the grosserimpurities contained iu the water.l rlfhis cap is provided with perforated top and bottom, and with .imperforate sides. B is the water-inlet cock, through whichthe water enters the filter, passing down through the cap F into the filtering-vessel D, which is filled with the wool, sponge, or both, this material resting on a perforated diaphragm, below which is a. chamber and discharge-cock, l) E, or a discharge-pipe, or both, for the liltered water. The space under the cover D', and surrounding the cap F, is a sedimentchamber, where the coarse substances carried in by the water are deposited. This sediment chamber can be washed ont by opening the flush-cock A, which can also be used to obtain unfiltered water t'or washing or gardening purposes. p i '[he cocksA and B are attached to tubes or pipes projecting laterally from the cover l), and can be detached therefrom whenever desired.

Fig. 3 is a slightly-modified form of ap paratns, in which there is a layer ot' charcoal below the wool or sponge.

What I claim, and desire to secure by Letters Patent, is-

1. The filtering apparatus, consisting of the vessel for reception ot' the filtering material, in com bi nation with the-cap, vertically through which the unfiltered water passes, the sur` yrounding cover forming a sedimeutfchamber,

and the inlet and fusli cocks or openings, arranged laterally in the -cover opposite the imperforate sides of the cap as set forth.

' 2. The combination, in a filtering apparatus, of an inlet pipe or cock above the lilteringchamber, an outlet for the filtered water below lthe filtering-chamber, and a discharge or Hush pipe or cock, the said flush-cock and inlet pipe or cock being on' opposite sides ot' the filter, and on the same level, so that the 'sediment-chamber above the tiltering-chamber may be flushed or swept out by opening the flush-cock, as shown and' set forth.

1n testimony that I claim the l'oregoing as my own I afx mysgnatu're in presence ot' two witnesses.

` V. DORDE'L Witnesses:

A. PoLLoK, EWELL A. DICK. 

